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Free security audit

Free Website Security Scan and Vulnerability Check

Our free website security scan checks your security headers, SSL/TLS certificate and DNS records in about a minute. It shows the weaknesses attackers look for first and sends you a score, a grade and a private result by email. We only read what any visitor’s browser can already see.

With or without https://. We use the main address only.
We email your private result link. No newsletter without your say.
What do you want to scan?

Website checks are free. Email and server checks connect to your own servers, so they unlock only after you prove the website is yours. It takes one DNS record and no payment.

We only read what any visitor can see.We never change your website.Result is private.

By scanning you confirm you may test this website. The scan is read-only.

See what you get first: example scan result sample full report sample PDF

  • 19free checks
  • 130checks in our library
  • 13security pillars
  • About 1 minto your result
What the scan covers

What the website security scan checks

Six modules. Three are free for any website. Three connect to your own servers, so they unlock after you prove ownership.

Free

Website security headers

Whether your website tells browsers to block clickjacking, script injection and insecure cookies.

Reads the headers your site already sends to every visitor.

10 checks

Free

Encryption and certificate

Whether the padlock is valid, old insecure versions are off and renewal will not catch you out.

Opens the same secure connection a browser opens and reads the certificate.

6 checks

Free

DNS health

Whether your domain name system is resilient, signed and free of leaked internal names.

Reads your public DNS records.

3 checks

Locked

Email authentication

Whether criminals can send mail pretending to be you, and whether your own mail reaches inboxes.

Reads your SPF, DKIM, DMARC and MTA-STS records. Included when you unlock the full report.

7 checks

Locked

Mail server connection

Whether every mail server of yours offers encryption with a valid certificate.

Connects to your mail servers. Runs only for the verified owner.

1 check

Locked

DNS server hardening

Whether your name servers refuse to hand your full list of records to strangers.

Asks your name servers for a zone transfer. Runs only for the verified owner.

1 check

Behind the scan

130 security checks in 13 pillars

The free scan is the part of our security library that can be tested from outside, with no login and no changes to your website. The library is wider. It groups 130 checks into 13 pillars, and each check explains why it matters, how to test it, what a pass looks like and how to fix it.

The 13 security pillars: server hardening, web application safeguards, containers, WordPress and CMS, cloud accounts, HTTP headers, incident response, mail authentication, privacy, vendors, backups, DNS and TLS.
The 13 pillars of our security library.
Security pillars and how each is checked
PillarChecksWhere it runs
HTTP security headers10Automatic outside scan
Free scan
TLS and certificates6Automatic outside scan
Free scan
DNS9Automatic outside scan, plus checklist
Free scan (3 checks); name server test after verification
Mail authentication10Automatic outside scan, plus checklist
After ownership verification
Server hardening12Audit run on the server itself
Not in this scan
Web application safeguards12Guided checklist
Not in this scan
Containers and Docker11Guided checklist
Not in this scan
WordPress and CMS11Guided checklist
Not in this scan
Cloud and SaaS accounts10Guided checklist
Not in this scan
Incident response10Guided checklist
Not in this scan
Privacy and compliance10Guided checklist
Not in this scan
Vendors and supply chain10Guided checklist
Not in this scan
Backups and recovery9Guided checklist
Not in this scan
Number of checks per pillar, split by how they are run: automatic outside scan, server audit or guided checklist.
Checks per pillar, by how they are run.
How a scan works: discover the domain, run the checks, record evidence, then report with a score.
How a scan works, start to report.

What you can point it at

Eight kinds of target: website, email domain, whole domain, Linux server, WordPress site, Docker host, cloud accounts and business processes.
Eight kinds of target. This page scans the first two kinds that work from outside; the others need access to the system itself.
What this is not. It is a configuration and exposure checker. It does not hunt unknown flaws (zero-days), exploit anything, guess passwords or test your application while logged in. A clean result is not proof of safety.
Three steps

How the scan works

  1. Enter your address and email

    Pick what to scan. Website checks are free and ticked for you. Locked checks wait for ownership proof.

  2. We read what visitors can see

    Headers, certificate and public DNS records, using ordinary requests. You see your place in line and the progress.

  3. Get your score and a private link

    You see a score from 0 to 100 with a grade and a result link only you have. Fix instructions are in the full report.

Your grade

What your security score means

The score starts at 100. Each failed check subtracts twice the weight of its severity and each warning subtracts it once, where critical is 10, high 6, medium 3 and low 1. Passed checks, and items we cannot judge from outside, cost nothing.

Score bands and grades
GradeScoreWhat it means
A90 to 100Strong base. Only fine tuning left.
B80 to 89Solid. A few hardening steps are open.
C70 to 79Basics are covered. Several gaps are worth closing.
D60 to 69Many gaps. An attacker has it easier than they should.
FBelow 60Serious gaps. Fix the failed checks first.
Questions

Website security scan questions

Short answers about what the scan does, what it does not do and what happens with your result.

What is a website vulnerability check?
A website vulnerability check looks for weaknesses attackers can use, such as missing security headers, outdated encryption, a badly set up certificate or weak DNS settings. DaniMaster’s scan checks these from the outside in about a minute. It does not replace a penetration test of your application code.
What does the free website security scan check?
It checks the headers your website sends, your certificate and encryption settings, and your public DNS records. That is 19 automated checks in three areas, with 9 more after you verify ownership. It reads only what any visitor or any DNS lookup can already see, and it changes nothing on your website.
How many security checks does DaniMaster run?
DaniMaster’s security library holds 130 checks in 13 pillars. The website scan runs the ones that can be tested from outside: 19 free checks on headers, encryption and DNS, and 9 more after you verify ownership. The remaining checks are guided checklists for servers, backups and accounts that no outside scan can see.
Is the scan safe for my website?
Yes. The scan makes the same kind of requests a normal browser makes: it loads your page, opens a secure connection and looks up public DNS records. It does not log in, submit forms, guess passwords or try to break anything.
Why are the email and server checks locked?
Email authentication only reads public DNS records, so it comes with the paid full report. The mail server and name server checks connect to your own servers. We only do that for the verified owner, so nobody can point the scanner at someone else’s systems. That verification is opening soon.
Is my scan result private?
Yes. We do not publish results or list them anywhere. Only the personal link we email to you opens your result, and nobody else can find it by searching.
How long does a website security scan take?
Usually under a minute. When many people scan at once you wait in line, see your place and are taken to the result automatically. If it takes longer, close the page: we email your private result link when it is ready.
Does a low score mean my website was hacked?
No. The score counts missing protective layers, not confirmed break-ins. A low score means an attacker would have an easier time, so the failed checks are worth fixing first. Re-scan after each fix to see your score rise.
Is this a penetration test?
No. It checks your public security configuration. Flaws inside an application, such as injection or broken access control, need a manual review or a penetration test.
What do I get with the full report?
The full report is a one-time payment of $1.99 CAD for the website you scanned. It adds step by step fixes for every warning and failure and where to make them, such as Cloudflare or your web server. It also includes the evidence behind each result, a professional PDF report and a fix file you can give to Claude or another AI assistant. You can open it right after paying and we email you the link. You can see a sample report on this page before you buy.

Want a person to fix what the scan finds?

DaniMaster can fix your security headers, certificate and DNS settings, and run a deeper review of your website. Start with a free AI audit.

Get a free AI audit